-3.26% is the change from 613 to 593
Calculation steps:
[( 593 - 613 ) ÷ 613] x 100 = -3.26%
Formula
Percentage change = [(593 - 613) / 613] x 100
Subtract the new number by the original number
593 - 613 = -20
-20 ÷ 613 = -0.03262642740619902
-0.03262642740619902 x 100 = -3.26%